[INFO] cloning repository https://github.com/Qwertee/Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Qwertee/Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FQwertee%2FRust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FQwertee%2FRust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c2c0f36e776e9f67457d46f3449a716ad4a7b1fe
[INFO] testing Qwertee/Rust against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FQwertee%2FRust" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Qwertee/Rust on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Qwertee/Rust
[INFO] finished tweaking git repo https://github.com/Qwertee/Rust
[INFO] tweaked toml for git repo https://github.com/Qwertee/Rust written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/Qwertee/Rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4174d657f7c0fdd856d92530ff386eff800e7f0b4507ee35139ede3017610332
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4174d657f7c0fdd856d92530ff386eff800e7f0b4507ee35139ede3017610332", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4174d657f7c0fdd856d92530ff386eff800e7f0b4507ee35139ede3017610332", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4174d657f7c0fdd856d92530ff386eff800e7f0b4507ee35139ede3017610332", kill_on_drop: false }`
[INFO] [stdout] 4174d657f7c0fdd856d92530ff386eff800e7f0b4507ee35139ede3017610332
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0d57ae257ceeb1f81901f8eee587903466fbaf9868268e7f1ca444ad54cb872c
[INFO] running `Command { std: "docker" "start" "-a" "0d57ae257ceeb1f81901f8eee587903466fbaf9868268e7f1ca444ad54cb872c", kill_on_drop: false }`
[INFO] [stderr]    Compiling learn_rust v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected `;`, found keyword `let`
[INFO] [stdout]  --> src/main.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let b = [0; 20]    // b: [i32; 20]
[INFO] [stdout]   |                    ^ help: add `;` here
[INFO] [stdout] 6 | 
[INFO] [stdout] 7 |     let c: (i32, &str) = (1, "Hello");  // tuple
[INFO] [stdout]   |     --- unexpected token
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `learn_rust`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "0d57ae257ceeb1f81901f8eee587903466fbaf9868268e7f1ca444ad54cb872c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d57ae257ceeb1f81901f8eee587903466fbaf9868268e7f1ca444ad54cb872c", kill_on_drop: false }`
[INFO] [stdout] 0d57ae257ceeb1f81901f8eee587903466fbaf9868268e7f1ca444ad54cb872c